Filter.



No. 789,617. PATENTED MAY 9, 1905.

T. LINKE.

FILTER.

APPLICATION FILED MAY 28, 1908.

I g- LA l INVENTOR headarelz'nke A TTORNE YS.

lUNlTlED dramas THEODORE LINKE, OF NEW' YORK, N.

Patented May 9, 1905,

FELTER,

SPECIFICATION forming part of Letters Patent No. 789,617. dated May 9, 1905.

Application filed May 28, 1903. Serial No. 159,105.

To (1, whom fl 711M COIL/20777,.

Be it known that l Tunooonn Lrxxn, a ci ti- Zen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved Filter, of which the following is a full, clear, and exact description.

This invention relates to improvements in filtering-faucets, the object being to provide a filtering-faucet of simple construction so arranged that either filtered or unliltered water may be discharged from it, that may be conveniently manipulated by a handle at the top, that may be readily dismembered for repairing without discharging water, and which has a novel arrangement of stone-cleaners.

l will describe a filter embodying my invention and then point out the novel features in the appended claim.

Reference is to be had to the accom 'ianying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in both the figures.

Figure 1 is a sectional elevation of a filter embodying my invention, and Fig. 2 is a section on the line 2 .2 of Fig. 1.

The body of the filter consists of a cylinder .1, preferaby of glass, so that the interior working of the device may be readily observed. This cylinder is secured between a metal top plate 2 and a metal bottom plate 3. The said plates are of somewhat larger diameter than the cylinder, and passing through the plates at the outer side of the cylinder are the clamping-bolts 4:. On the upper plate 2 is a tubular projection 5, the opening in the upper portion of which is somewhat reduced in diameter and is interim-1y threaded to receive the thread on a rod 6, provided with a handle 7. The water is discharged into the enlarged portion of the extension 5 through a pipe 8.

On the inner end of the rod 6 is a plate 9, havinga packing '10 on its upper face designed to engage with a valve-seat 1'1, surrounding the lower portion of the opening in the extension 5, and removably engaging with the inner end of this red 6 is a rod 12, having wings 13 extended lengthwiscofit. Attached to the lower end of this red 12 is a plate 14:,

from which a diseharge-tul'ie 15 for liltered water extends downward, and extended downward from said plate luland surroumling the tube 15 is atube 16. through which unfiltered water may be discharged, this tube 16 being provided near the plate 14: with ports l7. The tube 16 is movable in a tubular projection 18 on the plate 3. A cylindrical filtering-stone 19 surrounds the rod 12 and is clamped between the plates 10 and 14:. To make a tight connection between the plates and stone, rubber washers Q0 21 are placed between the plates and stone. The wings l3 bear against the inner surface of the stone; but ti 2 space between the wings permits the water to pass down through ports 22 into the tube 15. As

the rod 12 has screw-threiul connection with v the rod 6, it is obvious that the parts may be separated to remove the stone when necessary or to place a new stone in position.

Bearing upon the stone are scraping or cleaning devices, consisting of spring-yielding plates 23, and, as here shown, these plates are connected to posts 24, extended upward from. the lower plate For convenience in attaching the plates to the posts the said posts may be longitudinally slotted and the plates slid therein. The width of each plate extended circumferentially of the stone approximates one fourth the stones circumference,thus providing suilieient yielding movement in comparatively thick plates not liable to break or fracture.

In the operation when the parts are in the position indicated in Fig. 1that is, with the valve 10 out of engagement with the seat- 11 and the ports 1'7 above the plate 3----unliltered water may flow out through the tube 16. lNhen it is desired to filter the water before discharging, the rod 6 is to be turned, thus forcing the stone downward, and consequently moving the ports '17 into the tubular projection 18 or into the rubber washer 26, supported at the upper end of said projection. The water will then lilter through the stone and pass out through the tube 15. When it is desired to entirely cut oil? the water, the rod 6 is to be turned to engage the valve 10 with the seat ll. It will be noted that during the rotary motion of the stone the scraping or cleaning devices will be brought into opaccumulated on the outer surface of the stone.

As the water enters the top it may be readilv shut off at the top of the filtering device, so

that the parts may be dismembered by removing the nuts from the bolts el, whereupon the lower plate and the glass cylinder move downward, carrying with them the cleaning devices, and then by detaching the rod 12 from the rod 6 the stone may be removed.

By the construction of my device as described only one valve-operating rod is required to adjust the parts, permitting unliltered water to pass through to adjust the parts for discharging filtered water and for entirely cutting onf the inlet of water when it is necessary to separate the several members, and by placing the handle at the top the manipulation of the valve-rod is much handier than when placed at the lower end of the filter.

Having thus described my invention, I claim as new and desire to secure by Letters Patent A filter comprising a body portion, top and bottom plates between which the body portion is clamped, a tubular upward extension on the top plate forming an inlet for water, a valve-seat surrounding the inner end of said tubular extension, a screw-rod operating in 3 said extension, a valve carried by the inner end of said rod for engaging said valve-seat, a winged rod having screw-thread engagement with the first-named rod, a plate on the lower end of said winged rod, a tube extended 35 downward from said plate, a perforated tube extended from the plate and surrounding the hrst-named tube, a tubular projection on the lower plate, a packing arranged in the said lower plate for closing the perforations of the 4 second-named tube, and a tubular filter-stone surroundingthe winged rod and clamped between said plates.

In testimony whereof I have signed my name to this specification in the presence of two sub- 45 

